Consider the cell:
$Pt | H_2(P_1 \ atm) | H^{+}(x_1 \ M) || H^{+}(x_2 \ M) | H_2(P_2 \ atm) | Pt$.
The cell reaction will be spontaneous if

Which of the following bacteria is associated with bio-insecticides?

The $IUPAC$ name for the complex $[Co(NO_2)(NH_3)_5]Cl_2$ is:

The least number among $\sqrt[3]{4}, \sqrt[4]{5}, \sqrt[4]{7}$ and $\sqrt[3]{8}$ is:

The sensitivity of a galvanometer is $60 \text{ division/A}$. When a shunt is used,its sensitivity becomes $10 \text{ division/A}$. If the galvanometer is of resistance $20 \ \Omega$,the value of shunt used is: (in $\Omega$)

Assertion : In the purely resistive element of a series $LCR$ $AC$ circuit,the maximum value of $rms$ current increases with an increase in the angular frequency of the applied $emf$.
Reason : $I_{\max} = \frac{\varepsilon_{\max}}{Z}$,where $Z = \sqrt{R^2 + (\omega L - \frac{1}{\omega C})^2}$ and $I_{\max}$ is the peak current in a cycle.